William Puello Elles CV

William Puello Elles

Web Developer

Professional profile

Bilingual Software Engineer with over 8 years of experience as a full-stack developer, specializing in Java (Spring Boot, Quarkus) and C# (.NET and .NET Core). Expert in scalable architectures, microservices, and leading agile teams.

Work experience

Technical Leader And Full Stack Developer

locatel | August 2020 - October 2025 (5 years 2 months)

Used skills

Development and maintenance of web applications using Java (Springboot, Quarkus), C# (.NET Core), SQL Server, and Angular. Implementation of REST APIs, JWT authentication, Azure deployments, predictive models with Azure ML, and scalable architectures. I led a team of 10 developers.

Major achievement

I led the migration to microservices in .NET and Spring Boot, improving system performance and stability. I implemented CI/CD with Jenkins and Azure DevOps, reducing production errors by 25%.

Application Development Leader

aservices sas | August 2017 - September 2020 (3 years 1 month)

Used skills

Development and maintenance of web applications using C#, .NET Core, SQL Server, and Angular. Implementation of JWT authentication, deployments on Azure DevOps, leadership of remote teams, process optimization, and continuous improvement.

Major achievement

I led remote application development teams, specializing in Java and Spring Boot. I implemented front-end solutions with Thymeleaf and Blazor, and managed SQL Server and Oracle databases.

Systems Coordinator

eca sas | March 2012 - May 2016 (4 years 2 months)

Used skills

Implementation of applications in server environments, management and maintenance of computer networks and systems, ensuring reliability and efficiency.

Major achievement

Leadership in software development projects using Java, .NET, SQL Server, and Oracle. Coordination of multidisciplinary technical teams.

Education experience

English as a Foreign Language
Centro colombo americano | High School

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